lily/note-column-reg.cc

   1 /*
   2   note-column-reg.cc -- implement Note_column_register
   3
   4   source file of the LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #include "note-column-reg.hh"
  10 #include "notehead.hh"
  11 #include "stem.hh"
  12 #include "note-column.hh"
  13 #include "script.hh"
  14 #include "rest-column.hh"
  15
  16 bool
  17 Note_column_register::acceptable_elem_b(Staff_elem const*elem_C)const
  18 {
  19     char const*nC = elem_C->name();
  20     return (nC == Script::static_name() || nC == Notehead::static_name()
  21             || nC == Stem::static_name());
  22 }
  23 Note_column*
  24 Note_column_register::note_col_l()
  25 {
  26     if (!ncol_p_){
  27         ncol_p_ = new Note_column;
  28         announce_element(Staff_elem_info(ncol_p_, 0));
  29     }
  30     return ncol_p_;
  31 }
  32
  33 Rest_column *
  34 Note_column_register::rest_col_l()
  35 {
  36     if (!restcol_p_) {
  37         restcol_p_  = new Rest_column;
  38         announce_element(Staff_elem_info(restcol_p_,0));
  39     }
  40     return restcol_p_;
  41 }
  42
  43 void
  44 Note_column_register::acknowledge_element(Staff_elem_info i)
  45 {
  46     if (!acceptable_elem_b(i.elem_l_))
  47         return;
  48
  49
  50     char const*nC = i.elem_l_->name();
  51
  52     if (nC == Script::static_name()) {
  53         script_l_arr_.push((Script*)i.elem_l_);
  54     } else if (nC == Notehead::static_name()) {
  55         Notehead * h_l = (Notehead*)i.elem_l_;
  56         if (h_l->rest_b_)
  57             rest_col_l()->add(h_l);
  58         else
  59             note_col_l()->add(h_l);
  60     }
  61     else if (nC == Stem::static_name()){
  62         stem_l_ = (Stem*)i.elem_l_;
  63     }
  64 }
  65
  66 void
  67 Note_column_register::pre_move_processing()
  68 {
  69     Script_column *col_l = ( ncol_p_ ) ? ncol_p_ : restcol_p_;
  70     if (!col_l)
  71         return;
  72
  73     for (int i=0; i < script_l_arr_.size(); i++)
  74         col_l->add(script_l_arr_[i]);
  75
  76     if (ncol_p_&&stem_l_)
  77         ncol_p_->add(stem_l_);
  78     if (restcol_p_) {
  79         if (! restcol_p_ -> dir_i_)
  80             restcol_p_->dir_i_ = dir_i_;
  81         typeset_element(restcol_p_);
  82         restcol_p_ =0;
  83     }
  84     if (ncol_p_) {
  85         if (!   ncol_p_->dir_i_ )
  86             ncol_p_->dir_i_ = dir_i_;
  87         if (! ncol_p_->h_shift_b_)
  88             ncol_p_->h_shift_b_ = h_shift_b_;
  89         typeset_element(ncol_p_);
  90         ncol_p_ =0;
  91     }
  92 }
  93
  94 void
  95 Note_column_register::post_move_processing()
  96 {
  97     script_l_arr_.set_size(0);
  98     stem_l_ =0;
  99 }
 100
 101 void
 102 Note_column_register::set_feature(Feature i)
 103 {
 104      if (i.type_ == "vdir")
 105         dir_i_ = i.value_;
 106      if (i.type_ == "hshift")
 107          h_shift_b_ = i.value_;
 108 }
 109
 110 Note_column_register::Note_column_register()
 111 {
 112     dir_i_ =0;
 113     h_shift_b_ = false;
 114
 115     ncol_p_=0;
 116     restcol_p_ =0;
 117     post_move_processing();
 118 }
 119 IMPLEMENT_STATIC_NAME(Note_column_register);
 120 ADD_THIS_REGISTER(Note_column_register);